Leveling device.



J. H. M. BROWN.

LEVBLING DEVICE.

APPLICATION FILED NOV. 9, 1912.

1,125,807. Patented Jan. 19, 1915.

| I l I ltl'l l 1 TH E NORRIS PETERS C0., PHOTO-LITHD., WASHINGTON. D.C.

JOHN HENRY MILTON BROWN, OF VICKSBURG, MISSISSIPPI.

LEVELING DEVICE.

Specification of Letters Patent.

Fatented Jan. 19, 1915.

Application filed November 9, 1912. Serial No. 730,441.

To all 207mm it may concern:

Be it known that 1. JOHN H. M. BROWN, a citizen of the United States,residing at Vicksburg, in the county of 'Warren and State ofMississippi, have invented new and useful Improvements in LevelingDevices, of which the following is a specification.

An object of the invention is to provide a leveling device, particularlyadaptable for use on pool and billiard tables for leveling the playingsurfaces thereof.

The invention embodies, among other features, a structure preferablyarranged with in the legs or supporting members of a table or otherarticleof furniture and whereby the height of the article of furniturefrom the floor can be varied in order to level the plane surfacethereof.

In the further disclosure of the invention reference is to be had to theaccompanying drawings, constituting a part of this specification, inwhich similar characters of reference denote corresponding parts in allthe views, and in which:

Figure 1 is a fragmentary vertical sectional view of a billiard table,showing my device used in connection therewith; Fig. 2 is a horizontalsectional view taken on the line 22 in Fig. 1; and Fig. 3 is a perspective view of the traveler.

Referring more particularly to the views, I disclose a portion of atable 10 and a leg or supporting member 11 thereof, the said leg beingpreferably hollow and having arranged therein a casing 12, with a block13 arranged to slide in a hollow portion of the leg 11, beneath thecasing 12, and normally reposing on the floor which also supports theleg of the table, a plate 1 1 being secured to the upper end of theblock 18 and having projecting upwardly therefrom a bolt'lo, the freeend of which is threaded into a wedge member 16, to support the samewithin the casing 12, suitable cushion springs 17 being placed withinthe casing, with the upper ends thereof abutting against the under faceof the wedge member 16 to aid in supporting the wedge member within thecasing and also cushion the same, thus taking up the slight play whichmight occur between the threaded portion of the bolt 15 and the wedgemember. A second wedge member 18 is secured to the under side of the topof the casing 12, in an inverted posi tion so that the inclined faces 19and 20 of the wedge members 16 and 18 respectively will be arranged inopposite relation to form a chamber 21, the upper and lower walls ofwhich are inclined as shown. A screw rod 22 extends within the casing 12and threaded on the screw rod is a traveler 2 1, the said traveler beingoperable in the chamber 21 and interposed between the wedge members 16and 18, the other.end of the screw rod being adapted to extendexteriorly of the casing and project into an elongated opening 22 formedin the supporting member 11. Now it will be apparent that when the screwrod is actuated by means of a suitable wrench or the like, the opposedfaces of the traveler will operate over the inclined faces 19 and 20 ofthe respective wedge members 16 and 18, suitable bearings 25 beingpreferably arranged upon the traveler in order to reduce the frictionbetween the inclined faces of the traveler and the inclined faces of thewedge members 16 and 18.

Now referring to the views, it will be seen that when a wrench or otherinstrument is placed in the recess 23 to grip the screw rod and rotationis imparted to the screw rod, the traveler 2 1 will be advanced orretreated in the chamber 21 to raise or lower the table 10 and lirrewisethe leg 11 thereof, it being readily understood that when the traveleris moved toward the wrench-applying end of the screw rod, the travelerbearing against the inclined face of the wedge member 16 will exert anupward movement on the inclined face of the wedge member 18, whereaswhen the traveler is retreated in the chamber 21, the weight of thetable 10 bearing down upon the wedge member 18 will cause the leg 11 andtable 10 to sink or lower, as the traveler is retreated in the chamber.As mentioned heretofore, the springs 17 are provided to aid in properlyseating the wedge member 16 and cushioning the same so that a fineadjustment of the.

table can be obtained, it being understood that each leg of the table isprovided with an independent leveling device such as described, in orderthat the plane surface of the table can be properly leveled. When thetable has been leveled, a disk 26 of an ornamental design is preferablymounted upon the leg of the table by means of glue or in any otherconvenient manner to cover the re cess 23, thus preventing dust and dirtfrom entering the casing 12 and also resulting in the neat appearance ofthe table and the supporting members thereof.

Although I have described my device as used in connection with abilliard table, it will be understood that the same can be convenientlyemployed in leveling various structures and articles of furniture.

Having thus described my invention, I claim:

In combination with a hollow supporting leg, a casing in the upper partof the hollow portion of the leg, said casing being provided with a slotin register with a slot in the leg, and an opening communicating withthe slot in the leg, a central leg member slidable in the hollow portionof the leg. a bolt projecting upwardly from the central leg member andinto the casing, a horizontal wedge member supported on the bolt andlying wholly within the casing, a second wedge member in opposedrelation to the first wedge member and lying wholly Within the casing sothat the inclined faces of the wedge members will be opposed to form atapering chamber, a screw rod in the casing and projecting through theslot in the casmg and the slot in the leg, with the free end of thescrew rod providing a handle portion and lying wholly within the openingand communicating with the slot in the leg, a traveler threaded on thescrew rod and operable in the chamber over the inclined faces of thewedge members, and ball bearings on the traveler and supported on theopposed surfaces thereof to contact with the inclined faces of the wedgemembers.

in testimony whereof I afiix my signature in presence of two witnesses.

JOHN HENRY MILTON BROWN. Witnesses:

PHILIP CHAS. COPELAIN,

tICHARD DORA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

